Fluvial-Tidal to Fluvial-Lacustrine Sedimentation of the Middle Miocene to Pleistocene Mapia Formation, Dogiyai, Papua (Indonesia)

A sedimentological and palynological investigation was carried out on outcropping sedimentary rocks at Dogiyai, Papua, proposed to be named as the Mapia Formation. The age range is from Middle Miocene Pleistocene. lower Formation deposited Metroxylon type Nothofagus emarcida Zone, Early Pliocene. It comprised of three facies associations: tidal channel, point bar, flat deposits. tidally dominated fluvially influenced depositional environment suggested for deposition sediments this unit. upper Malvacipollis diversus Garcinia cuspidata Proteacidites sp. Late Pliocene five delta front, slump, debrite, turbidite, lacustrine mud non-channelized deep-lacustrine slump debris-flow synorogenic clastic beginning Central Range orogeny event while in piggyback basin major uplift event.